20708349

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 30412800

約数和(自身を除く): 9704451

約数列:

[1, 3, 23, 29, 69, 79, 87, 131, 237, 393, 667, 1817, 2001, 2291, 3013, 3799, 5451, 6873, 9039, 10349, 11397, 31047, 52693, 87377, 158079, 238027, 262131, 300121, 714081, 900363, 6902783, 20708349]

約数ペア:

[(1, 20708349), (3, 6902783), (23, 900363), (29, 714081), (69, 300121), (79, 262131), (87, 238027), (131, 158079), (237, 87377), (393, 52693), (667, 31047), (1817, 11397), (2001, 10349), (2291, 9039), (3013, 6873), (3799, 5451)]